Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MATSUKAWA Hideya and OYAMA Makiko and NEGISHI Chiharu and ARAI Yoshiko and IWASAKI Chiaki and HOTTA Hiroshi,Analysis of Free Descriptions of Course Evaluation Questionnaires Using Topic Mode,Japan Journal of Educational Technology,13498290,Japan Society for Educational Technology,2018,41,3,233-244,https://cir.nii.ac.jp/crid/1390001205229882112,https://doi.org/10.15077/jjet.41018